I imported the whole dataset with read.csv2() and it works fine. (2 for German is correct ;) )
I already checked the numbers and I also tried to calculate the mean of a range of numbers where there is no NA given. (as mentioned in my last post above). -- View this message in context: http://r.789695.n4.nabble.com/Calculating-the-mean-in-one-column-with-empty-cells-tp4645135p4645166.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.